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A traveler on a boat moving 1.70 m/s on a still lake walks up a flight of stairs at a speed of .60m/s. The stairs are angled at 45o pointing in the direction of motion. Find the vector velocity of the traveler relative to the water.
If a person of mass M simply moved forward with speed V , his kinetic energy would be (1/2 MV^2) . However, in addition to possessing a forward motion, What is the average angular velocity of his arms and legs
Water is well mixed in a 1m3 vessel. A stirrer introduces 300W of power into the vessel. determine what is the temperature of the outlet liquid
An electric field of 254,000 N/C points due west at the certain spot. What are the magnitude and direction of the force that acts on the charge of -8.1 µC at this spot.
a rescue helicopter lifts a 70-kg person straight up by means of a cable. the person has an upward acceleration of 0.70
A trunk with a weight of 230 N rests on the floor. The coefficient of static friction between the trunk and the floor is 0.32, what would be the acceleration of the trunk
A steel-belted radial automobile tire is inflated to a gauge pressure of 30.0lb/in^2, what is the tire's pressure at the elevated temperature
A small plastic ball with a mass of 6.50 x 10?3 kg and a charge of +0.15uC is suspended from an insulating thread, What is the magnitude of the charge on each plate
A high diver leaves the end of a 5-m-high diving board, and strikes the water 1.3 s later, 3 m beyond the end of the board. determine the velocity with which she enters the water
a wire carrying a current is placed in a uniform magnetic field. When a current of 3.7A flows in the wire there is a force of 0,075N on each 18cm of wire in the field
The maximum wavelength for which an electromagnetic wave can eject electrons from a platinum surface is 196 nm. When radiation by a wavelength of 156 nm shines on the surface, what is the maximum speed of the ejected electrons?
Let's say your can has covers a distance of 3 m in 5 seconds under constant acceleration. Use kinematics equations and Newton's second law to calculate the acceleration of the can
The coefficient of kinetic friction for a 22 kg bobsled on a trackis 0.25. What force is required to push it down a 6.0° incline and achieve a speed of 68 km/h at the end of 75 m
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